#! /bin/bash
gnuplot << EOF
set style data histograms
set style histogram cluster gap 1
set boxwidth 0.75
set mxtics 2
set yrange [0:2.5] 
set terminal postscript enhanced 25
set output "$1.ps"
plot "$1" using (\$2/\$2):xtic(1) title col lc rgb "red" fill solid,\
	"$1" using (\$2/\$3):xtic(1) title col  lc rgb "greenyellow" fill solid
EOF
